Optimization of Composite B-Pillar Considering Appropriate Stacking Sequence with Genetic Algorithms

Authors

STUDENT

Abstract

In this thesis for improving in samand behavior in besides collision, internal part of B-pillar of SAMAND modeling by use of laminated composite made up of carbon – epoxy and simulation beside collision test based on FMVSS-214 standard. This survey is performance on finite element analys and show the condition and quality of stacking sequence of difrent layers.
Since change in orientation layers cause of change in structure resistance affected by collision, using of Genetic Algurithm and neural lattice get better result for minimum transfiguration of B-pillar. Also to achive the steady stacking sequence use the result of 49 Taguchi’s studys and simulation for 8 layers in -90 to 90 degree and 120 Hamersly’s tests for 8 layers in 0 to 90 degree, and 120 Hamersly test for 4 layers in 0 ti 90 degree. Based on this result and gained data from optimization algoritm and complet survey of test result, the best collision behavior of structure occure in 40 to 50 degree stacking sequence.
Stracture we offer in this study own minimum transfiguration and displacement. And
System in this manner, exist maximum safty and security for passengers that is the most important chalengein besides couission.

Keywords


[1] Reddy S (2007) Modeling and analysis of composite b-pillar for side-impact protection of occupant in a sedan. Submitted to college of engineering Wichita state university for the degree of Master of Science: 5–22.
[2] Menzel S (2010) Optimization of a composite b-pillar. Volkswagen Group Research: 1–5.
[3] Garib A, Shakeri M (2010) Stacking sequence optimization of laminated cylindrical shell for buckling and free vibration using genetic algorithm and neural network. Department of Mechanical Engineering, Amirkabir University: 1–6.
[4] Vnucec Z (2000) Analysis of the laminated composite plate under combined load. TMT 2000 – Trends in the Development of Machinery and Associated Technology, Proceedings, Zenica: 267–274.
[5] شمس ش، وطن پرست م، حسنی ع الف (1389) بررسی رفتار پوسته مخروطی کامپوزیتی در جذب انرژی برخورد تحت ضربه محوری. دهمین کنفرانس انجمن هوافضای ایران، ص 1–5.
 [6] Federal Motor Vehicle Safety Standards (FMVSS) (1995) No.214 Side Impact Protection, U.S Department of Transportation.
[7] Niu MCY (1988) Airframe structural design. Conmilit Press.
[8] محسنی شکیب  س م (1389) مکانیک سازه­های مرکب. انتشارات دانشگاه امام حسین(ع).
 [9] Department of Defense Handbook (2002) Composite material handbook, polymer matrix composite materials usage, design and analysis. MIL-HDBK-17-3F, Volume 3.
[10] Robert M. Jones, “Mechanics of Composite Material”, Published by Taylor and Francis, Second Edition, 1999
[11] Penning RL (1982) Failure modes of fiber reinforced laminates. ESDU Journal, composite series: 82025
[12] Tasi SW, Pagano NJ (1968) Invariant properties of composite material. Technomic, Stamford, Connecticut: 233–253.
[13] Ranjit R (1990) A primer on the taguchi method. Van Nostrand Reinhold.
[14] http://www2.research.att.com/~njas/oadir/index.ht
ml. a Library of Orthogonal Aray, N. J. A. Sloan (2007).
[15] Jang SM, Kawai Y (2005) Energy absorption characteristics on aluminum beams sterengthened with cfrp laminated under impact loading. Key Engineering Materials 297-300: 1–3.